<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>花样连接卡</title>
    <style>
        #box {
            width: 300px;
            height: 300px;
            padding: 10px;
            border: 2px solid red;
        }

    </style>
</head>

<body>
<div id="box">
    <a class="a1" href="#">链接1</a>
    <a class="a2" href="#">链接2</a>
    <a class="a3" href="#">链接3</a>
    <a class="a4" href="#">链接4</a>
    <a class="a5" href="#">链接5</a>
</div>

</body>
</html>
